WO2015140370A1 - Dispositivo de medicion del caudal de un fluido incompresible con medio impulsor - Google Patents
Dispositivo de medicion del caudal de un fluido incompresible con medio impulsor Download PDFInfo
- Publication number
- WO2015140370A1 WO2015140370A1 PCT/ES2015/070147 ES2015070147W WO2015140370A1 WO 2015140370 A1 WO2015140370 A1 WO 2015140370A1 ES 2015070147 W ES2015070147 W ES 2015070147W WO 2015140370 A1 WO2015140370 A1 WO 2015140370A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- fluid
- reservoir
- outlet
- pump
- dosed
- Prior art date
Links
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00
- D06F39/02—Devices for adding soap or other washing agents
- D06F39/022—Devices for adding soap or other washing agents in a liquid state
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D11/00—Control of flow ratio
- G05D11/02—Controlling ratio of two or more flows of fluid or fluent material
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/005—Valves
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F3/00—Measuring the volume flow of fluids or fluent solid material wherein the fluid passes through the meter in successive and more or less isolated quantities, the meter being driven by the flow
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D7/00—Control of flow
- G05D7/06—Control of flow characterised by the use of electric means
- G05D7/0617—Control of flow characterised by the use of electric means specially adapted for fluid materials
- G05D7/0629—Control of flow characterised by the use of electric means specially adapted for fluid materials characterised by the type of regulator means
- G05D7/0635—Control of flow characterised by the use of electric means specially adapted for fluid materials characterised by the type of regulator means by action on throttling means
- G05D7/0641—Control of flow characterised by the use of electric means specially adapted for fluid materials characterised by the type of regulator means by action on throttling means using a plurality of throttling means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
Definitions
- the present invention refers to a device for measuring the flow rate of an incompressible fluid.
- the present invention refers to a device that is especially advantageous for the measurement of the flow of an incompressible fluid in a hydraulic circuit comprising another vehicular fluid that is also incompressible, such as water.
- a device that is especially advantageous for the measurement of the flow of an incompressible fluid in a hydraulic circuit comprising another vehicular fluid that is also incompressible, such as water.
- a fluid is dosed, and in some cases more than one, such as, for example, a detergent and a softener in a hydraulic circuit that carries water .
- the correct measurement of the flow rate of the dosed fluid is important.
- the placement of a flowmeter for each fluid to be dosed or the placement of a single flowmeter must be chosen. If different fluids with different rheological characteristics pass through the single flow meter, compensation factors should be used depending on the characteristics of the fluid, but since the characteristics of the fluid are very variable within a characteristic range, this would imply having a high imprecision of measure, or have expensive equipment to measure the properties of the fluids to be dosed.
- Another alternative is the one disclosed in the Spanish Patent document ES2381949 consisting of a dosing system of at least one substance comprising at least one fluid inlet to be dosed and a displacement fluid inlet (vehicular fluid) that give access to a reservoir with an outlet that in turn gives access to a part of the circuit (in particular, a bypass) in which only the displacement or vehicular fluid circulates.
- This part of the circuit has an access valve and a flow meter.
- the flow rate of the fluid to be dosed is measured indirectly, by measuring the flow rate of the vehicle fluid displaced by the fluid to be injected at its entrance to the reservoir.
- said objective is achieved, in particular, by a system of dosing of at least one substance comprising at least one fluid inlet to be dosed and a displacement fluid inlet (vehicular fluid) that give access to a reservoir with an outlet from the reservoir which in turn gives access to a circuit part in which only the displacement or vehicular fluid circulates, said part of the circuit having at least one access valve and a flow meter, the fluid to be dosed being measured by measuring the vehicle fluid displaced by the fluid to boost your entry into the system.
- the pump is located in the aforementioned part of the circuit, such that said pump works in suction for the part of the circuit upstream of the pump, and in impulse in the area of the circuit located downstream of the pump.
- the pump only works with vehicular fluid, less chemically aggressive, and works on impulsion for at least certain parts of the circuit.
- the present invention also comprises particular embodiments of the circuit that allow additional advantages of the novel arrangement object of the invention.
- the invention is based on the use of the fact that when an incompressible body is introduced into a container containing a first incompressible fluid, the latter is displaced. In this way the carrier fluid is pumped, indirectly transmitting said impulse to the fluid to be dosed, such that the pump is prevented from coming into contact with the fluid at dose, which is generally more aggressive
- the pump can be used during the entire dosing process, or only during a part of the process, such as for example, during the measurement of the displaced vehicular fluid prior to the output of the fluid to be dosed from the system .
- an external pressure source can be used to drive the rest of the phases, for example the vehicle fluid pressure at the entrance to the system (for example, mains water) or a second pump.
- said part of the circuit in which only the displacement or vehicular fluid circulates is configured as a bypass at the exit of the reservoir, the pump being located in said bypass, preferably before the flowmeter access valve.
- said outlet of the reservoir gives direct access to the pump, the access valve and the flowmeter, there is a bypass between the outlet of the reservoir and an intermediate point between the outlet of the pump and the flowmeter and access valve assembly, and a second by-pass between the vehicular fluid inlet to the system and a point before the pump, the system having an additional outlet for the fluid to be dosed that is independent of the outlet of the reservoir mentioned above and that has a specific valve.
- said additional output is configured as a branch located before the input to the reservoir, in such a way that the fluid to be dosed is directed towards the second outlet in the opposite direction to its entrance to the reservoir.
- the fluid to be dosed enters the reservoir by aspiration of the pump and leaves the reservoir driven by the vehicle fluid which is in turn driven by the same pump.
- the various by-passes and valves of the system are operated in a consistent manner depending on the phase of the dosing procedure: measurement, assurance of entry of the fluid to be dosed in the reservoir and transport of the fluid to be dosed at its corresponding exit from the system.
- Figure 1 shows a scheme of a first embodiment according to the present invention.
- Figures 2 to 5 show a diagram of a second embodiment of the object of the present invention, in three phases of its operation.
- FIG. 1 An example of a first embodiment of the system according to the present invention consisting of a hydraulic circuit of possible laundry application can be seen in Figure 1.
- the system consists of a modification of the device shown in document ES2381949.
- the system of Figure 1 comprises a first inlet -1- of vehicular fluid, such as water, an inlet -2- of a second fluid, such as a detergent solution, and two other inlets -2'- and - 2 '' - of two other fluids (for example, softeners).
- Each inlet has its own inlet valve -11-, -12-, -12'- and -12 '' - to open / close the corresponding incompressible fluid passage.
- Each of the inlets leads to a pipe -3- that connects to the inlet of a receiving vessel -4-, where the fluid is stored.
- the receiving vessel in this example, has an outlet pipe -5-, which has a fork.
- a first outlet valve -61- is arranged in the first fork -6-
- a second outlet valve -72- is arranged in the second fork -7-
- a flowmeter -73- is provided downstream of the second outlet valve -72-.
- Both bifurcations -6-, -7- converge in a same pipe -8- of feeding to a hydraulic circuit.
- one or two non-return valves could be provided in each of the branches -6-, -7-, in the vicinity of the supply line -8- to the hydraulic circuit.
- the system has a pump -200- after the branch -7- of the circuit in which only the vehicular fluid circulates.
- the exit of the reservoir -4- has been represented in its upper part
- the outlet of the reservoir -4- can be located in the lower part thereof, while the entrance is located in the upper part. In this way, gravity helps the output of the fluid to be dosed. This can be important in the case that the vehicular fluid is of lower density than the fluid to be dosed.
- the embodiment shown in Figure 1 is more suitable when the vehicular fluid is of greater density than the fluid to be dosed, since in this way it is possible to improve the effective volume of the reservoir -4- and reduce the volume of mixture of fluids
- the reservoir -4- is arranged horizontally or in the form of a coil or other pipe layout, there is no advantage of the gravitational or antigravity arrangement of the entrances or exits to the reservoir.
- Figure 1 shows the circuit in idle state. In this state, the circuit is filled with vehicular fluid -100-, with no flow. There could also be a flow of vehicular fluid -100-, such as, for example, water.
- the product or products that is the second and third incompressible fluids (fluids to be dosed) are introduced into the circuit sequentially, upstream of the receiving vessel -4-.
- the drive would preferably come from the suction produced by the pump -200- during the measurement process of the displaced vehicle fluid.
- Figures 2, 3, 4 and 5 show a diagram of a second embodiment according to the present invention in which they have been Four operating moments represented.
- elements equal or similar to those in Figure 1 have been represented with identical numerals and will therefore not be explained in depth.
- the outlet of the reservoir -4- gives direct access to the pump -200-, the access valve -72- and the flowmeter -73-, with a bypass -8- existing between the outlet of the reservoir and an intermediate point between the pump outlet -200- and the access valve assembly -72- and flowmeter -73-.
- a bypass -9- between the inlet -1- of the vehicle fluid to the system and a point before the pump -200-, whose opening is governed by the valve -112-.
- the system has a second additional outlet -6- for the fluid to be dosed that is independent of the aforementioned outlet and that has a specific valve -61-, with the reservoir outlet -5-, and the additional outlet -6- joined downstream of the flowmeter -73-.
- said additional outlet -6- is placed before the entrance to the reservoir, so that the fluid to be dosed is directed towards the second outlet -6- in the opposite direction from its entrance to the reservoir -4-.
- the second outlet -6- is configured as a branch of the inlet tube -3-
- the measurement phase has been shown in figure 2. In it the flow senses have been represented by arrows.
- the vehicle fluid -1000- is driven by the pump -200- and the fluid to be dosed -1001- enters the system.
- the flowmeter -73- measures the fluid to be dosed indirectly, by measuring the flow of vehicular fluid -1000-.
- Figure 3 shows a post-measurement phase, in which the fluid inlet valve -12- to be dosed -1001 has been closed and the vehicle fluid valve -11- has been reopened. The pump is still running. This phase aims to ensure that all the fluid to be dosed is introduced into the reservoir -4-. The directions of movement have been marked by arrows.
- Figure 4 shows a subsequent phase of transport or dosing, the first and second by-pass -8-, -9- are opened by actuating the corresponding valves (such as valve -112-)
- the pump -200- is used to drive.
- the fluid to be dosed -1001- leaves the system through the second outlet -6-.
- the directions of movement have been marked by arrows.
- FIG 5 another transport or dosage phase has been shown which may be an alternative to that of Figure 4 or be a subsequent phase.
- the drive does not come from the pump -200-, and must come from the outside of the circuit (vehicle fluid pressure -1000-, external pump in or out of the circuit).
- vehicle fluid pressure -1000-, external pump in or out of the circuit The directions of movement have been marked between arrows.
- suitable procedures such as those described for example
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Textile Engineering (AREA)
- Fluid Mechanics (AREA)
- Measuring Volume Flow (AREA)
- Loading And Unloading Of Fuel Tanks Or Ships (AREA)
- Reciprocating Pumps (AREA)
- External Artificial Organs (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES15764057T ES2877057T3 (es) | 2014-03-17 | 2015-03-02 | Dispositivo de medición del caudal de un fluido incompresible con medio impulsor |
CA2938026A CA2938026A1 (en) | 2014-03-17 | 2015-03-02 | Device for measuring the flow of an incompressible fluid, having propelling means |
EP15764057.4A EP3121678B1 (en) | 2014-03-17 | 2015-03-02 | Device for measuring the flow of an incompressible fluid, having propelling means |
US15/125,950 US20170073874A1 (en) | 2014-03-17 | 2015-03-02 | Device for measuring the flow of an incompressible fluid, having propelling means |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ESP201430362 | 2014-03-17 | ||
ES201430362A ES2459841B1 (es) | 2014-03-17 | 2014-03-17 | Dispositivo de medición del caudal de un fluido incompresible con medio impulsor |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2015140370A1 true WO2015140370A1 (es) | 2015-09-24 |
Family
ID=50631128
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/ES2015/070147 WO2015140370A1 (es) | 2014-03-17 | 2015-03-02 | Dispositivo de medicion del caudal de un fluido incompresible con medio impulsor |
Country Status (5)
Country | Link |
---|---|
US (1) | US20170073874A1 (es) |
EP (1) | EP3121678B1 (es) |
CA (1) | CA2938026A1 (es) |
ES (2) | ES2459841B1 (es) |
WO (1) | WO2015140370A1 (es) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20020017320A1 (en) * | 1999-06-07 | 2002-02-14 | Walton Frank A. | Pumping system for the injection of measured quantities of fluid into a fluid stream |
ES2381949A1 (es) * | 2010-11-12 | 2012-06-04 | Aurep Dos, S.L. | Dispositivo y procedimiento de medicion de un fluido incompresible |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1094818A (en) * | 1965-06-11 | 1967-12-13 | Ass Octel | Liquid metering apparatus and method |
US5105851A (en) * | 1990-10-17 | 1992-04-21 | Hewlett-Packard Company | Apparatus for multi-path flow regulation |
US6098646A (en) * | 1997-02-19 | 2000-08-08 | Ecolab Inc. | Dispensing system with multi-port valve for distributing use dilution to a plurality of utilization points and position sensor for use thereon |
US6234030B1 (en) * | 1998-08-28 | 2001-05-22 | Rosewood Equipment Company | Multiphase metering method for multiphase flow |
-
2014
- 2014-03-17 ES ES201430362A patent/ES2459841B1/es not_active Expired - Fee Related
-
2015
- 2015-03-02 CA CA2938026A patent/CA2938026A1/en not_active Abandoned
- 2015-03-02 EP EP15764057.4A patent/EP3121678B1/en active Active
- 2015-03-02 ES ES15764057T patent/ES2877057T3/es active Active
- 2015-03-02 WO PCT/ES2015/070147 patent/WO2015140370A1/es active Application Filing
- 2015-03-02 US US15/125,950 patent/US20170073874A1/en not_active Abandoned
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20020017320A1 (en) * | 1999-06-07 | 2002-02-14 | Walton Frank A. | Pumping system for the injection of measured quantities of fluid into a fluid stream |
ES2381949A1 (es) * | 2010-11-12 | 2012-06-04 | Aurep Dos, S.L. | Dispositivo y procedimiento de medicion de un fluido incompresible |
Also Published As
Publication number | Publication date |
---|---|
ES2459841A1 (es) | 2014-05-12 |
CA2938026A1 (en) | 2015-09-24 |
US20170073874A1 (en) | 2017-03-16 |
EP3121678A4 (en) | 2017-11-22 |
EP3121678A1 (en) | 2017-01-25 |
ES2877057T3 (es) | 2021-11-16 |
ES2459841B1 (es) | 2014-12-09 |
EP3121678B1 (en) | 2021-04-14 |
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